Expansible-fluid engine.



PATENTED MAY 23, 1905.

J. T. HALSEY" EXPANSIBLE FLUID ENGINE.

APPLICATION FILED SEPT. 7, 1904.

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No. 790,829. PATENTED MAY 23, 1905. J. T. HALSEY.

EXPANSIBLE FLUID ENGINE.

APPLIOATION FILED SEPT. 7, 1904.

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ATTORNEY.

NTTED STATES Patented May 23, 1905.

PATENT Trice.

EXPANSIBLE-FLUID ENGINE.

SPECIFICATION forming part of Letters Patent No. 790,829, dated May 23, 1905.

Application filed September 7, 1904. Serial No. 223,595.

To all whom it may concern:

Be it known that 1, JAMES T. HALSEY, acitizen of the United States of America, residing in the city and county of Philadelphia, in the State of Pennsylvania, have invented a certain new and useful Improvement in Expansible-Fluid Engines, of which the following is a true and exact description, reference being had to the accompanying drawings, which form a part thereof.

My invention relates to multiple-cylinder eXpansible-fluid engines, in which a group of cylinders are secured to the main shaft and rotate with it, while the pistons working in said cylinders, and through them the cylinders, are coupled to a fixed crank; and the object of my present invention is to mitigate and largely overcome the lack of balance which is incident to such engines as heretofore constructed.

Essentially my invention consists in employing in such engines more than a single set of such cylinders and pistons and in so arranging the sets that the reciprocating parts willas far as possible move simultaneously in opposite directions. A double set of engine-cylinders will usually be found most convenient, and in this case I arrange the similar cylinders and pistons of the two sets at an angle of ninety degrees to each other.

In the drawings which illustrate an engine embodying myinven tion, Figure 1 is a crosssection on the line 1 1 of Fig. 2. Fig. 2 is a cross-section on the line 2 2 of Fig. 1. Figs. 3 and A are side elevations of the cylinders and pistons of the two sets, showing their relationship in position to the center of rotation. Fig. 5 is a section on line 5 5 of Fig. 1, and Fig. 6 is a section on line 6 6 of Fig. 1.

A is a casing inclosing the crank and cylinders and serving asa frame or support for the shaft, the crank-support, and the valveboxes.

A indicates the bearing for the shaft; A the bearing for the shaft supporting the crank.

A and A are the valve-boxes and hearings on opposite sides of the casings, A and A the entrance and exhaust ports for steam leading to valve-box A and A and A similar ports leading to valve-box A.

B is a shaft supported in hearing A and having at its inner end the disk B, from one side of which extends the crank B a reduced end B of which extends into a bearing in the disk D, supported on a stud E of the cylinder-frame. In order to permit an angular adjustment of the crank to regulate the cut-- ofi of the valves, an adjusting-arm G, with threaded segment 0, is secured on the end of shaft B and engaged with a worm C supported on a bracket A of the casing.

E is the engine-shaft, supported in bearing A and, as shown, formed integral with the valve E and with ports E EYE, and E, which open laterally, so as to register as the valve turns with the ports A and A of the valve-box A The valve and shaft have secured to them the frame or spider E, on which is formed the stud E already referred to, and through the right-angled arms of which run continnations of the ports of the valve. To two opposite arms of the spiderframe are secured the cylinders G G, having ports G G which connect, as shown, with ports E and E of the spider. The other opposite arms of the spider carry oppositelyfacing slide-guides H H, through which extend the ports E E", connecting through their faces with the cylinder moving between the guides through ports i G.

F is a valve generally similar to valve E, but moving in valve-box A and around the shaft B, as shown, secured to it, is the frame or spider F", the valve and spider being provided with ports F F" F" F, as in the case of spider E. The two spiders are arranged with their similar parts at an angle of ninety degrees to each other and are firmly secured together by bracing, such as disk I. The slideguides of spider F are indicated at H and Hg, and the cylinders secured to the other arms are marked G and G, as before.

J and J are pistons moving in cylinders Gr and Gr and connected together by their connection to a transverse cylinder J having slide extensions J J at its ends which move sides to give passage to crank B K K are pistons moving in cylinders J J and having transverse central bearings K for the crank B In operation the steam entering through ports A and A and exhausting through ports A and A passes to and fromeach valve and spider port and its connected cylinder or cylinder end in turn causing the pistons to re-.

ciprocate and the whole system to rotate, as 'the pistons can only reciprocate by moving around the crank B and it will be seen by reference to Figs. 3 and L that not only are the parts to some extent balanced by reason of their positions at right angles to each other, but that their shifting reciprocating movements are necessarily such that the center of gravity of both sets of cylinders and pistons is on the average closer to the center of rotation than is the case with the center of gravity of either set.

The general construction of theengine described and shown apart from the utilization of two sets of cylinders and pistons is substantially the same as the construction forming the subject-matter of my pending application for Letters Patent, filed February 13, 1900, and renewed March 17, 1904:, Serial No. 198,657. Therefore I do not claim in this application other features than the balancing of the engine, as described.

Having now described my invention, what I claim as new, and desire to secure by Letters Patent, is--- 1. An eXpansible-fiuid engine havinga fixed crank-pin and having two similar sets of rotating and reciprocating cylinders and pistons connected therewith as described and arranged with the similar parts of the two sets at right angles to each so as to eifect a balance of the rotating and reciprocating parts.

2. An eXpansible-fluid engine having a casing for inclosing its movable parts provided with bearings on opposite sides for the main shaft and for a fixed crank shaft or support, said casin g having also bearings on its opposite sides for rotating valve-plugs and inlet and outlet steam-passages leading thereto, in combination with a fixed crank, two similar sets of rotating and reciprocating cylinders and pistons working on said crank, rotating valveplugs working in the bearings aforesaid, frames connecting the valve-plugs with the cylinders and main shaft, said frames having ports connecting the ports of the valve-plugs with the cylinders and means securing the two sets of cylinders together so that the similar reciprocating parts of the cylinders and pistons of each set will be at right angles to each other and balanced in their movements.

JAMES T. HALSEY.

WVitnesses:

D. STEWART, W. S. Fox. 

